I bought a fake id 30 years ago that used the actual backs from Rhode Island DMV that they acquired somehow, but then faked the fronts. Equipment like that can absolutely go missing.
I never got around to modifying the data on mag stripe. I just dragged a hard-drive magnet over it until it didn’t scan at all.
My takeaway from all that? The hologram that was used to strengthen the official IDs had an unintended side effect of making the fakes easier to believe.